Spiral Fluted Taps (for blind hole)Spiral Fluted Taps(for through hole)Spiral Pointed Taps(for through hole)Hand TapsCementedCarbide TapsRoll TapsSpecial Thread TapsSimple Inspection ToolsPipe TapsThread MillsPremium Thread MillsDiesCenter DrillsCentering Tools ⑦ Special Thread Taps / Simple Inspection Tools Overall Pin Bored hole dia. Bored hole dia. Bored hole depth Bored hole depth Bored hole depth Shanklengthlength(GO)(NOT-GO)(1.5D)(2D)(2.5D)dia.Lℓd1d2ℓ1ℓ2ℓ3Ds JIS ① CHECK PINS Usage example of Check Pins CPC-Sstraight type 5th ② You can check both hole size and hole condition at the PSroTcEesPs same time by this Check-pin! Thread Inspection using Simple ③ 1st 2nd 3rd 4th Inspection Tool SIT Process Process Process Process (NB-6H) Positioning &Countersinking Drilling Reaming Tapping ④ Point drill (PE-Q-V) Drill Reamer Tap ⑤ ⑥ ⑦ POINT Appropriate ●Longer tool life!bored hole●Improved quality of Totalcost before tapping internal threads! reduction! ⑧ It is important to check the hole condition before tapping! Hole condition can be inappropriate before tapping. Set efficient hole size and bore holes correctly, and you can get the longer tool life and keep away from any tapping troubles. Let's check the hole before tapping. ⑨ CASE CASE CASE CASE 1 Bending 2 Slanting 3 Oversize inlet 4 Undersize of hole hole ⑩ Check-pin stops Hole isn't Inlet is too big. Hole is smaller on the way. vertical against than minimum end face. size of the standard. ⑪ ×BAD ×BAD ×BAD ×BAD JIS ⑦-55